Description of the Software Modules and Parameters
Parameter manual b maXX BM5800
Document No.: 5.16029.03
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Figure 62: Optimization
The noise amplitude Z104.12– must be specified in ampere. ProDrive recommends 10%
of the rated current. In order to start the drive it must be in the released state.
The recorded frequency response accords to the entire range of the FFT evaluation. Per
amplitude and phase (FFT-length/2)-elements are accepted. This way the frequency re
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sponse covers up to "Max. frequency" Z104.19– (this means the parameter FFT-data
Z104.21–, whose data accordingly have 500 elements, only, are not used).
The recorded frequency response can be stored in a file ("Save file" button). In this file
also the system information of the control loop analysis is saved.
Based on the recorded frequency response the plant can be identified in the next step.
Optionally, the identification can be executed by a frequency response recorded and
saved priorly. It can be loaded from a file in the operating memory space of ProDrive with
system information ("Load file" button)
Step 2: Identification of the control process
With the first 512 elements of the entire FFT evaluation the identification is carried out, up
to a frequency of
Max. frequency [104.19] * 512 / (FFT length / 2)
Example: With "Max. frequency" Z104.19– = 2000 Hz and "FFT length" Z104.9– = 4096
up to a frequency of 500 Hz.
At first is evaluated if it is a single mass system or a two-mass vibrational system. For this
the accepted frequency response is checked, if there are distinctive antiresonance and
resonance frequencies.
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